参数资料
| 型号： | PI3B3244QE |
| 厂商： | Pericom |
| 文件页数： | 3/5页 |
| 文件大小： | 0K |
| 描述： | IC 8-BIT BUS SW 2-PORT 20-QSOP |
| 标准包装： | 55 |
| 类型： | 总线开关 |
| 电路： | 4 x 1:1 |
| 独立电路： | 2 |
| 电压电源： | 单电源 |
| 电源电压： | 3.3V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 20-QSOP |
| 包装： | 管件 |
PI3B3244
3.3V, Hot Insertion
8-Bit, 2-Port NanoSwitch
3
PS8149F
08/25/04
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PI3B3244
Com.
Parameters Description
Conditions(1)
Min.
Max.
Units
tPLH
Propagation Delay(2,3) CL = 50 pF,
0.25
ns
tPHL
Ax to Bx
RL = 500
tPZH
Bus Enable Time
CL = 50 pF,
1.0
4.0
ns
tPZL
BE to Ax or Bx
RL = 500,
tPHZ
Bus Disable Time
RL = 500
1.0
4.5
ns
tPLZ
BE to Ax or Bx
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min.
Typ(2)
Max.
Units
ICC
Quiescent Power
VCC = Max.
VIN = GND or VCC
0.1
3.0
A
Supply Current
ICC
Supply Current per
VCC = Max.
VIN = 3.0V(3)
750
A
Input @ TTL HIGH
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.
Switching Characteristics over Operating Range
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the ON
resistance of the switch and the load capacitance. The time constant for the switch alone
is of the order of 0.25ns for 50pF load. Since this time constant is much smaller than the
rise/fall times of typical driving signals, it adds very little propagational delay to the
system. Propagational delay of the bus switch when used in a system is determined by
the driving circuit on the driving side of the switch and its interaction with the load on
the driven side.
ApplicationsInformation
LogicInputs
The logic control inputs can be driven up to +3.6 regardless of the supply voltage. For example, given a + 3.3V supply, IN may be
driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail minimizes power consumption.
Power-SupplySequencingandHot-PlugInformation
Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC and GND before applying signals to
input/output or control pins.
Rail-to-Rail is a registeredtrademark of Nippon Motorola, Ltd
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PI3B3244QEX | 功能描述:数字总线开关 IC 3.3V 8B Bus Switch RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
| PI3B3244QX | 制造商:Pericom Semiconductor Corporation 功能描述:Bus Switch 2-Element CMOS 8-IN 20-Pin QSOP T/R |
| PI3B3245 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital Switch | 3.3V 8-Bit Bus Switch (FCT245 Pinout) |
| PI3B3245L | 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:3.3V, Hot Insertion 8-Bit, 2-Port, NanoSwitch |
| PI3B3245LE | 功能描述:数字总线开关 IC 3.3V 8B Bus Switch RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
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